If the initial partial pressure of CH3CONH2 in a container at 737°C is 2.52×10-2 atm, how long will it take to fall to 6.30×10-3 atm?

c, liquids evaporate, creating a gas

there is none because earth is stationary and flat.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.